mirror of
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154 lines
6.0 KiB
Groff
154 lines
6.0 KiB
Groff
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.TH "PACKAGE\-LOCK\.JSON" "5" "December 2018" "" ""
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.SH "NAME"
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\fBpackage-lock.json\fR \- A manifestation of the manifest
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.SH DESCRIPTION
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.P
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\fBpackage\-lock\.json\fP is automatically generated for any operations where npm
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modifies either the \fBnode_modules\fP tree, or \fBpackage\.json\fP\|\. It describes the
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exact tree that was generated, such that subsequent installs are able to
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generate identical trees, regardless of intermediate dependency updates\.
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.P
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This file is intended to be committed into source repositories, and serves
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various purposes:
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.RS 0
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.IP \(bu 2
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Describe a single representation of a dependency tree such that teammates, deployments, and continuous integration are guaranteed to install exactly the same dependencies\.
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.IP \(bu 2
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Provide a facility for users to "time\-travel" to previous states of \fBnode_modules\fP without having to commit the directory itself\.
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.IP \(bu 2
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To facilitate greater visibility of tree changes through readable source control diffs\.
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.IP \(bu 2
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And optimize the installation process by allowing npm to skip repeated metadata resolutions for previously\-installed packages\.
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.RE
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.P
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One key detail about \fBpackage\-lock\.json\fP is that it cannot be published, and it
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will be ignored if found in any place other than the toplevel package\. It shares
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a format with npm help 5 shrinkwrap\.json, which is essentially the same file, but
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allows publication\. This is not recommended unless deploying a CLI tool or
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otherwise using the publication process for producing production packages\.
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.P
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If both \fBpackage\-lock\.json\fP and \fBnpm\-shrinkwrap\.json\fP are present in the root of
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a package, \fBpackage\-lock\.json\fP will be completely ignored\.
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.SH FILE FORMAT
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.SS name
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.P
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The name of the package this is a package\-lock for\. This must match what's in
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\fBpackage\.json\fP\|\.
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.SS version
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.P
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The version of the package this is a package\-lock for\. This must match what's in
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\fBpackage\.json\fP\|\.
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.SS lockfileVersion
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.P
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An integer version, starting at \fB1\fP with the version number of this document
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whose semantics were used when generating this \fBpackage\-lock\.json\fP\|\.
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.SS packageIntegrity
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.P
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This is a subresource
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integrity \fIhttps://w3c\.github\.io/webappsec/specs/subresourceintegrity/\fR value
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created from the \fBpackage\.json\fP\|\. No preprocessing of the \fBpackage\.json\fP should
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be done\. Subresource integrity strings can be produced by modules like
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\fBssri\fP \fIhttps://www\.npmjs\.com/package/ssri\fR\|\.
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.SS preserveSymlinks
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.P
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Indicates that the install was done with the environment variable
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\fBNODE_PRESERVE_SYMLINKS\fP enabled\. The installer should insist that the value of
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this property match that environment variable\.
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.SS dependencies
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.P
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A mapping of package name to dependency object\. Dependency objects have the
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following properties:
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.SS version
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.P
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This is a specifier that uniquely identifies this package and should be
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usable in fetching a new copy of it\.
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.RS 0
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.IP \(bu 2
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bundled dependencies: Regardless of source, this is a version number that is purely for informational purposes\.
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.IP \(bu 2
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registry sources: This is a version number\. (eg, \fB1\.2\.3\fP)
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.IP \(bu 2
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git sources: This is a git specifier with resolved committish\. (eg, \fBgit+https://example\.com/foo/bar#115311855adb0789a0466714ed48a1499ffea97e\fP)
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.IP \(bu 2
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http tarball sources: This is the URL of the tarball\. (eg, \fBhttps://example\.com/example\-1\.3\.0\.tgz\fP)
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.IP \(bu 2
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local tarball sources: This is the file URL of the tarball\. (eg \fBfile:///opt/storage/example\-1\.3\.0\.tgz\fP)
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.IP \(bu 2
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local link sources: This is the file URL of the link\. (eg \fBfile:libs/our\-module\fP)
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.RE
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.SS integrity
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.P
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This is a Standard Subresource
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Integrity \fIhttps://w3c\.github\.io/webappsec/specs/subresourceintegrity/\fR for this
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resource\.
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.RS 0
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.IP \(bu 2
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For bundled dependencies this is not included, regardless of source\.
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.IP \(bu 2
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For registry sources, this is the \fBintegrity\fP that the registry provided, or if one wasn't provided the SHA1 in \fBshasum\fP\|\.
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.IP \(bu 2
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For git sources this is the specific commit hash we cloned from\.
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.IP \(bu 2
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For remote tarball sources this is an integrity based on a SHA512 of
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the file\.
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.IP \(bu 2
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For local tarball sources: This is an integrity field based on the SHA512 of the file\.
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.RE
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.SS resolved
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.RS 0
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.IP \(bu 2
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For bundled dependencies this is not included, regardless of source\.
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.IP \(bu 2
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For registry sources this is path of the tarball relative to the registry
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URL\. If the tarball URL isn't on the same server as the registry URL then
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this is a complete URL\.
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.RE
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.SS bundled
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.P
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If true, this is the bundled dependency and will be installed by the parent
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module\. When installing, this module will be extracted from the parent
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module during the extract phase, not installed as a separate dependency\.
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.SS dev
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.P
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If true then this dependency is either a development dependency ONLY of the
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top level module or a transitive dependency of one\. This is false for
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dependencies that are both a development dependency of the top level and a
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transitive dependency of a non\-development dependency of the top level\.
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.SS optional
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.P
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If true then this dependency is either an optional dependency ONLY of the
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top level module or a transitive dependency of one\. This is false for
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dependencies that are both an optional dependency of the top level and a
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transitive dependency of a non\-optional dependency of the top level\.
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.P
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All optional dependencies should be included even if they're uninstallable
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on the current platform\.
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.SS requires
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.P
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This is a mapping of module name to version\. This is a list of everything
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this module requires, regardless of where it will be installed\. The version
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should match via normal matching rules a dependency either in our
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\fBdependencies\fP or in a level higher than us\.
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.SS dependencies
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.P
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The dependencies of this dependency, exactly as at the top level\.
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.SH SEE ALSO
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.RS 0
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.IP \(bu 2
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npm help shrinkwrap
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.IP \(bu 2
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npm help 5 shrinkwrap\.json
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.IP \(bu 2
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npm help 5 package\-locks
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.IP \(bu 2
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npm help 5 package\.json
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.IP \(bu 2
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npm help install
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.RE
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